Question

我正在使用Spring 2.0.5 Release作为Parent。我是Spring的新手。而且我正在使用此API https://www.metaweather.com/api/location/2487956/尝试使用Object Mapper进行显示，而RestTemplate出现了问题。

public void read() throws IOException {
     RestTemplate rest = new RestTemplate();
     ResponseEntity<String> response  = rest.getForEntity("https://www.metaweather.com/api/location/2487956", String.class);
     ObjectMapper mapper = new ObjectMapper();
     JsonNode root = mapper.readTree(response.getBody());
     JsonNode name = root.path("weather_state_name");

     System.out.println(response.getBody());
}

Answer 1

您的RestEntity很好，您没有正确解析您的响应。 weather_state_name位于名为solidated_weather的数组中。以下内容将满足您的需求。

        ObjectMapper mapper = new ObjectMapper();
        JsonNode root = mapper.readTree(response.getBody());
        JsonNode consolidated_weather =root.get("consolidated_weather");
        consolidated_weather.forEach(x -> {

            System.out.println( x.get("weather_state_name"));
        });

RestEntity不正常返回空的正文

1 个答案: